gv115
I wanted to get a new fan for my cooler and didn't want to spend $20+ nor did I want RGB. This fan was going into the center of my heatsink (Fuma 2) so RGB is pointless. So I gave Cooler Master another shot after having a horrible time with their POM bearing based fans. Cooler Master appears to have gone back to their rifle bearing which was a solid bearing back then when they used it. Better than sleeve in durability and nearly as durable as double ball while being almost as quiet as sleeve. This fan uses a 9 blade design similar to gentle typhoons and Noctua a12 while pushing nearly as much static pressure as both a 2150rpm typhoon or the Noctua a12. And I can feel the pressure of it pushing out the back of my Fuma 2.No grinding noises, no clicking, frame is very heavy which is nice, fairly quiet at 2000rpm, comes with rubber dampeners, has a good amount of static pressure that competes with other similar designed fans (2.1 mmH20), no RGB, PWM, sleeved cable, and decently cheap (well under $20). What more could you ask for?If you're interested in using this as a case fan for case airflow I would pass on it as its ~60CFM for 2000rpm is pretty lackluster, but this fan is designed for static pressure. If you're looking for a heatsink / radiator / penetration fan this is a solid fan to get.
DBDB
For the price, these case fans were exactly what I was looking for. There’s no hub needed, they have great color, and noise wasn’t a problem for me. They worked with asus aura perfect. Be aware that the pwm and rgb cables that must attach to the motherboard are a little short. A great addition is the rgb extension cable that comes with it and allows you to plug more than one rgb device into one rgb header.
Jaybird
I had purchased a Coolermaster 212 RGB Black edition prior to acquiring two more of these fans, and let me tell you... After installing the double CPU cooler fans, and attaching one to the back as an exhaust fan, my temperatures dropped about 8°C degrees ( I was averaging 26-32°C resting, and now I average 20-23°C ). The RGBs are pretty, work with Asus Aura Sync, and are VERY silent.IMPORTANT: Make sure that the arrow on the RGB header input is to the left, otherwise the RGB won't work. There is also the possibility that it being the wrong direction could destroy your motherboard. I was lucky enough to not have that happen, and thanks to forums at Tom's Hardware, I was able to find this simple fix! It really is as simple as flipping the header impute.
ColtColt
This fan is great! Bright, colorful RGB lighting and it runs extremely silent! The corners of this fan have rubber inserts to provide anti-vibration and the whole thing just feels sturdy and well built. Just know that this is an RGB fan, not an A-RGB Fan (This fan has a 4-Pin connection, not 3). Very pleased with this purchase and it's one more CoolerMaster product that has definitely impressed me!